Solve the problem of garbled characters when passing Chinese parameters from js to java background

When transferring Chinese characters from js to the java backend, if there are Chinese characters in the parameters, the value obtained by the backend will be garbled.

The solution is as follows:

1. First encode the parameters when passing the value in js, and then pass the value to the backend

var userName=encodeURI(userName);

2. Get the value in the backend After the value is reached, use it to decode

userName= java.net.URLDecoder.decode(userName, "UTF-8");

Recommended tutorial: java introductory tutorial

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